It’s been seen that viltrumites will die from having their heads decapitates or their heart damaged or destroyed but we’ve seen immortal able to revive by having his head reattached and in the comics we’ve seen him having his heart punched out by Omni man but he stated he’ll have a new heart in no time
Okay but you run immortal through a woodchipper and he’s in pieces. You put a viltrumite through a woodchipper & you need a new woodchipper